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xen-devel
Re: [xen-devel][PATCH] PV driver compatibility
On 22/01/2010 08:43, "Ian Campbell" <Ian.Campbell@xxxxxxxxxxxxx> wrote:
>>> The protocol allows for coarse grained selection of which devices to
>>> unplug:
>>> 6) The drivers write a two-byte bitmask of devices to unplug to IO
>>> port 0x10. The defined fields are:
>>
>> Well, the flexibility is nice, but not a feature that driver currently
>> actually uses.
>>
>> My default action right now will be to add a module option to specify
>> selective or complete flushing, keep the patch, but only fail to load
>> drivers if flush is requested but not possible, otherwise just warn.
>
> Sounds good, what will the default flush setting be?
None. Those who are switching from emulated to pv should know what they are
doing and specify the module option.
> Could you swap out the 0xdead and 0xbeef for the defines which are
> specified right above the function in question while you are there?
Yep.
-- Keir
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